Protagonist and Antagonist of Berenice

Protagonist: Egaeus, the narrator
Antagonist: The teeth of Berenice, his cousin

Egaeus, the narrator in the story, is a young man who is dealing with monomania disease. This condition makes the patient focus uncontrollably on a topic or thing for a period of time. During the story, Egaeus and his cousin Berenice slowly fall in love and plan on getting married. But, Egaeus becomes obsessed with his Love's teeth and can't overlook the horror and excitement he sees within them.

In my opinion, Berenice's teeth are only a figment of Egaeus' imagination, due to his disease. However, the white "chompers" did have quite an eeriness to them once understood from the narrator's point of view. The teeth seem to haunt Egaeus. I believe the teeth of Berenice play the same role as the vexed eye in the "Tell-Tale Heart."